--- id: CVE-2025-49796 title: A vulnerability was found in libxml2 summary: >- A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, res… severity: critical cvss: 9.1 cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H' cwe: - CWE-125 vendor: Red Hat product: libxml2 affected: - libxml2 < 2.15.0 - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 (all versions) - libxml2 - rhcos (all versions) - rhcos (all versions) - rhcos (all versions) - rhcos (all versions) - rhcos (all versions) - rhcos (all versions) - rhcos (all versions) - rhcos (all versions) - web-terminal/web-terminal-rhel9-operator (all versions) - web-terminal/web-terminal-tooling-rhel9 (all versions) - web-terminal/web-terminal-tooling-rhel9 (all versions) - openshift-serverless-1/logic-data-index-ephemeral-rhel8 (all versions) - openshift-serverless-1/logic-data-index-postgresql-rhel8 (all versions) - openshift-serverless-1/logic-db-migrator-tool-rhel8 (all versions) - openshift-serverless-1/logic-jobs-service-ephemeral-rhel8 (all versions) - openshift-serverless-1/logic-jobs-service-postgresql-rhel8 (all versions) - openshift-serverless-1/logic-kn-workflow-cli-artifacts-rhel8 (all versions) - openshift-serverless-1/logic-management-console-rhel8 (all versions) - openshift-serverless-1/logic-operator-bundle (all versions) - openshift-serverless-1/logic-rhel8-operator (all versions) - openshift-serverless-1/logic-swf-builder-rhel8 (all versions) - openshift-serverless-1/logic-swf-devmode-rhel8 (all versions) - cert-manager/jetstack-cert-manager-rhel9 (all versions) - compliance/openshift-file-integrity-rhel8-operator (all versions) - discovery/discovery-server-rhel9 (all versions) - libxml2-main (all versions) - insights-proxy/insights-proxy-container-rhel9 (all versions) - libxml2 - openshift/ose-rhel-coreos-8 (all versions) patched: - enterprise_linux_server_v_7_els - enterprise_linux_server_optional_v_7_els - openshift_container_platform 4.12 - 8base_openshift_serverless_1_36 - openshift_container_platform 4.13 - openshift_container_platform 4.14 - openshift_container_platform 4.16 - openshift_container_platform 4.17 - openshift_container_platform 4.18 - openshift_container_platform 4.19 - openshift_container_platform 4.20 - web_terminal_1_11_on_rhel 9 - web_terminal_1_12_on_rhel 9 - enterprise_linux_appstream_v_10 - enterprise_linux_appstream_v_8 - enterprise_linux_appstream_aus_v_8_2 - enterprise_linux_appstream_aus_v_8_4 - enterprise_linux_appstream_eus_extension_v_8_4 - enterprise_linux_appstream_aus_v_8_6 - enterprise_linux_appstream_e4s_v_8_6 - enterprise_linux_appstream_tus_v_8_6 - enterprise_linux_appstream_e4s_v_8_8 - enterprise_linux_appstream_tus_v_8_8 - enterprise_linux_appstream_e4s_v_9_0 - enterprise_linux_appstream_e4s_v_9_2 - enterprise_linux_appstream_eus_v_9_4 - enterprise_linux_appstream_v_9 - enterprise_linux_baseos_v_10 - enterprise_linux_baseos_v_8 - enterprise_linux_baseos_aus_v_8_2 - enterprise_linux_baseos_aus_v_8_4 - enterprise_linux_baseos_eus_extension_v_8_4 - enterprise_linux_baseos_aus_v_8_6 - enterprise_linux_baseos_e4s_v_8_6 - enterprise_linux_baseos_tus_v_8_6 - enterprise_linux_baseos_e4s_v_8_8 - enterprise_linux_baseos_tus_v_8_8 - enterprise_linux_baseos_e4s_v_9_0 - enterprise_linux_baseos_e4s_v_9_2 - enterprise_linux_baseos_eus_v_9_4 published: '2025-06-16' updated: '2026-09-18' sourceUpdated: '2026-09-18T18:17:03.760' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-49796' references: - url: 'https://access.redhat.com/errata/RHSA-2025:10630' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:10698' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:10699' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:11580' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:12098' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:12099' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:12199' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:12237' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:12239' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:12240' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:12241' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:13267' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:13335' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:15397' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:15827' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:15828' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:18217' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:18218' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:18219' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:18240' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:19020' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:19041' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:19046' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:19894' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:21913' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:0934' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:62549' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2026:7519' label: secalert@redhat.com - url: 'https://access.redhat.com/security/cve/CVE-2025-49796' label: secalert@redhat.com - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2372385' label: secalert@redhat.com - url: 'https://gitlab.gnome.org/GNOME/libxml2/-/issues/933' label: secalert@redhat.com - url: 'https://lists.debian.org/debian-lts-announce/2025/07/msg00014.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://cert-portal.siemens.com/productcert/html/ssa-253495.html' label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e - url: 'https://cert-portal.siemens.com/productcert/html/ssa-577017.html' label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e - url: >- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-49796.json - url: 'https://www.cve.org/CVERecord?id=CVE-2025-49796' - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-49796' tags: - nvd - cve.org - csaf - vex - red-hat epss: 0.01558 epssPercentile: 0.73682 ssvc: exploitation: none automatable: 'yes' technicalImpact: partial timestamp: '2025-06-16T15:32:55.790163Z' ingestedAt: '2026-06-29T13:24:34.370Z' --- ## Overview A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory. ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges. ## Vendor advisories - **RHSA-2025:12240** · Red Hat · fixed in: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS) · released 2025-07-30 · [advisory](https://access.redhat.com/errata/RHSA-2025:12240) - **RHSA-2025:19894** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.12 · released 2025-11-13 · [advisory](https://access.redhat.com/errata/RHSA-2025:19894) - **RHSA-2026:0934** · Red Hat · fixed in: 8Base-Openshift-Serverless-1.36 · released 2026-01-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:0934) - **RHSA-2025:18240** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.13 · released 2025-10-23 · [advisory](https://access.redhat.com/errata/RHSA-2025:18240) - **RHSA-2025:19041** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.14 · released 2025-10-30 · [advisory](https://access.redhat.com/errata/RHSA-2025:19041) - **RHSA-2026:62549** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.16 · released 2026-09-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:62549) - **RHSA-2025:18218** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.17 · released 2025-10-22 · [advisory](https://access.redhat.com/errata/RHSA-2025:18218) - **RHSA-2025:19046** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.18 · released 2025-10-29 · [advisory](https://access.redhat.com/errata/RHSA-2025:19046) - **RHSA-2025:18217** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.19 · released 2025-10-22 · [advisory](https://access.redhat.com/errata/RHSA-2025:18217) - **RHSA-2025:15397** · Red Hat · fixed in: Red Hat OpenShift Container Platform 4.20 · released 2025-10-21 · [advisory](https://access.redhat.com/errata/RHSA-2025:15397) - **RHSA-2025:15828** · Red Hat · fixed in: Red Hat Web Terminal 1.11 on RHEL 9 · released 2025-09-15 · [advisory](https://access.redhat.com/errata/RHSA-2025:15828) - **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat OpenShift Container Platform 4 · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-49796.json)